CELL BIOLOGY TEST 1 - Rashirozgar.com

CELL BIOLOGY

1 / 10

Which of the following is involved in targeting proteins to lysosomes?

A. Mannose-6-phosphate

B. Ubiquitin

C. Phosphatidylserine

D. Clathrin

2 / 10

What is the role of the nuclear pore complex?

A. DNA replication

B. Protein synthesis

C. Transport of molecules between nucleus and cytoplasm

D. Lipid synthesis

3 / 10

Which protein is responsible for forming the contractile ring during cytokinesis in animal cells?

A. Tubulin

B. Dynein

C. Actin

D. Kinesin

4 / 10

The lysosomal membrane contains which enzyme to prevent self-digestion?

A. DNase

B. ATPase

C. Protease inhibitors

D. None of the above

5 / 10

Which of the following is NOT a function of the plasma membrane?

A. Selective permeability

B. Cell signaling

C. ATP production

D. Cell adhesion

6 / 10

During which phase of the cell cycle is DNA replicated?

A. G1 phase

B. G2 phase

C. M phase

D. S phase

7 / 10

Which type of cell junction prevents the leakage of materials between epithelial cells?

A. Gap junction

B. Adherens junction

C. Tight junction

D. Desmosomes

8 / 10

Microtubules are made up of which protein?

A. Actin

B. Tubulin

C. Keratin

D. Myosin

9 / 10

Which of the following organelles is directly involved in the glycosylation of proteins?

A. Mitochondria

B. Endoplasmic Reticulum

C. Golgi Apparatus

D. Nucleus

10 / 10

The major function of peroxisomes is

A. Protein synthesis

B. Fatty acid breakdown and detoxification of hydrogen peroxide

C. ATP production

D. DNA replication

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The average score is 73%

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